Tutor-visible context
Student context
Problem context
图表的纵轴表示数量，不是变化率。
Learning objective
帮助学生找出图表读取中的错误，并要求一个核验步骤。
Context window
Conversation history
No prior conversation. This case starts with the current student message.
Public boundary
What this page does not expose
This public development artifact intentionally excludes ground truth answers, known-misconception annotations, rubrics, and evaluator-only evidence. A future hidden challenge dataset must use the same fail-closed serialization boundary.